can I convert a class to int in c++?

[sunsflower]

for example:
class UserInt
{
.....
};

and is there a way to do this:

UserInt ui = 5;
int a = ui;

?

thanks!

[TwilightSpectre]

Yes. Use operator int(). For example:

class UserInt {
public:
    UserInt(int i) : m_i(i) {}

    operator int() const { 
        return m_i; 
    }
    // ...

private:
    int m_i;
};

// ...

UserInt ui = 10;
int a = ui;

[sunsflower]

thanks a lot!